i do talk to alot of my customers and some do ask for me specifically i recomend what is best for them not me cost and labor wise i treat every car as if it were my mothers so that is not an issue and being a tech at the dealer my hands are tied when it comes to outside the box repairs
ex since 80% of my work is warranty

and as for a turbo eating up inventory we dont stock them we dont stock anything that isnt a fast moving part for the most part and if vw is going to make a repair kit for hte turbos then they have to have a school to tech people to fix them and load up the depot's with kits it would inturn cost hundreds of thousands of dollars if not more